To investigate lateralization of duration and pitch discrimination processing with emphasis on the influences of task difficulty, we used event-related functional magnetic resonance imaging. Seventeen healthy volunteers performed paired auditory discrimination tasks at varying levels of difficulty. Analysis of lateralization effects revealed leftward lateralization within the insular and the temporal cortex under both conditions. Moreover, parametric

The present study was designed to explore the development of speech-related hand movements in children and to examine the age and sex distribution of differences in performance (praxic abilities) between the two hands of the child. One-hundred-thirty-one normal Romanian children, divided into three age groups (4-, 6-, and 8-year-olds) and two testing periods, were individually tested. The children were videotaped while engaged in conversation with